Sporting Systems
J&B Firearm Sales
Oregon Rifleworks
Bear Creek Arsenal
HighLine Firearms
Southwest Firearms
JavaScript is disabled
Our website requires JavaScript to function properly. For a better experience, please enable JavaScript in your browser settings before proceeding.

  • Join the #1 community for gun owners of the Northwest

    We believe the 2nd Amendment is best defended through grass-roots organization, education, and advocacy centered around individual gun owners. It is our mission to encourage, organize, and support these efforts throughout Oregon, Washington, Idaho, Montana, and Wyoming.

    Free Membership Benefits

    • Fewer banner ads
    • Buy, sell, and trade in our classified section
    • Discuss firearms and all aspects of firearm ownership
    • Join others in organizing against anti-gun legislation
    • Find nearby gun shops, ranges, training, and other resources
    • Discover free outdoor shooting areas
    • Stay up to date on firearm-related events
    • Share photos and video with other members
    • ...and much more!

buffer spring

A lysis buffer is a buffer solution used for the purpose of breaking open cells for use in molecular biology experiments that analyze the labile macromolecules of the cells (e.g. western blot for protein, or for DNA extraction). Most lysis buffers contain buffering salts (e.g. Tris-HCl) and ionic salts (e.g. NaCl) to regulate the pH and osmolarity of the lysate. Sometimes detergents (such as Triton X-100 or SDS) are added to break up membrane structures. For lysis buffers targeted at protein extraction, protease inhibitors are often included, and in difficult cases may be almost required. Lysis buffers can be used on both animal and plant tissue cells.

View More On Wikipedia.org
Recent contents
  1. MichaelH

    Budget AR Parts - Parts Bin Clean-out (updated)

      1. For Sale
      2. For Trade
    • $12345
    • Portland
    • Oregon
    Tired of your milspec stock on your $400 ATI AR, but don't have the $ for a B5? Got a cheap scope but don't want to spend more to mount it than it cost? Missing the buffer or spring for your parts bin build? Looking at your hunting bi-pod and your mlok handguard and scratching your head on...
  2. ScottInPDX

    Free unused Chrome SI 308 AR rifle length buffer spring with light surface rust

      1. For Sale
    • $0
    • Tualatin
    • Oregon
    So apparently chrome silicon buffer springs are prone to rust, and I didn't realize that when I bought this from Fulton Armory. I've read that it shouldn't affect function as it's really only on the surface, but I just don't feel right putting it into a rifle when I'm going all out on all the...
  3. O

    wtt for 4 x ar15 carbine buffer springs and h buffers

      1. Want to Trade For
    • puyallup
    • Washington
    I cant find my spare springs and looking to get 4 x ar15 carbine buffer springs and h buffers puyallup area
  4. T

    Ar-15 rifle length buffer spring

      1. For Sale
    • $10
    • Albany
    • Oregon
    Hasn’t been used
  5. matty206

    Geissele Super 42 Buffer Spring and Buffer, H1

      1. For Sale
    • $50
    • Seattle
    • Washington
    Geissele Super 42 Buffer Spring and Buffer, H1 for sale in original packaging. Put about 50 rounds through an AR with this and had constant short stroking going on. I guess its a standard buffer and spring for me.
  6. HANKYPANKY

    Rifle length (NOT CARBINE) spring and buffer

      1. For Sale
    • $15
    • Roseburg
    • Oregon
    Is as described rifle length like new buffer and spring. Got this thinking I needed it. As it turns out I never did.
  7. matty206

    Geissele Super 42 Braided Wire Buffer Spring and Buffer Combo, H1

      1. For Sale
    • $45
    • Seattle
    • Washington
    Originally bought this hoping it would fix that annoying twang a stock spring makes when you drop the bolt on an AR. It did exactly that! However the spring has a 15% stronger return force then a standard spring. Coupled with the H1 buffer, my 16" AR w/ a mid length gas tube had a constant...
  8. Asavage270

    Wanted - extra power carbine buffer spring

      1. Want to Buy
      2. Want to Trade For
    • Eugene
    • Oregon
    Anyone got an extra laying around? Thanks!
  9. cambo373

    Glock 19 Gen 4 with RMR cut slide and new better buffer spring.

      1. For Sale
    • $499
    • Portland
    • Oregon
    Glock 19 Gen 4 with RMR cut slide for sale. $499, a steal of a deal. Comes with new stiffer and better buffer spring and 3 extra magazines.
  10. sagia308

    405 yards AR-15 /T-91 short stroking buffer spring wrong size M193 bullets undercharged

    well that was weird found out the buffer spring was long
  11. H

    Sprinco M4 Blue Enhanced Power Buffer Spring

      1. For Sale
    • $15
    • Renton
    • Washington
    I have a Sprinco M4 Blue Enhanced Power Buffer Spring for sale. About 200 rounds through it. Asking $15.
  12. B

    Colt 6920 trigger and buffer/spring

      1. For Sale
      2. For Trade
    • $20
    • Portland
    • Oregon
    Upgraded some parts and have a 6920 trigger and buffer and spring for trade or make an offer
  13. AnimalMother

    Looking for product recommendations(Trigger, Buffer, Buffer Spring) for my PSA 10.5”and 18” AR15.

    Looking for product recommendations(Trigger, Buffer, Spring) for my PSA complete 10.5” and 18” AR15. Both the 10.5 and 18” have Magpul Moe stocks. Both the 10.5” and 18” came with identical standard buffers and standard buffer springs. For the 18”, I was thinking of a flat wire spring and H1...
  14. papersoldier

    JP Enterprises Gen 2 Silent Captured Buffer Spring System (AR-15)

      1. For Sale
    • $80
    • Clatskanie
    • Oregon
    For sale is a JP Enterprises Gen 2 Silent Captured Buffer Spring System for the AR-15. This is the "standard" version, and comes with the original Delrin spacer for fitting if needed (though it dropped right in on my .300Blk AR). Asking $80. Not looking for any trades at this time. Can meet in...
  15. pnwhunter69

    Buffer tube, buffer spring and buffer, all new!

      1. For Sale
    • $30
    • Molalla
    • Oregon
    Buffer tube, buffer spring and buffer for an ar15. All brand new I dont remember the brand on these so $30 for all Or I can ship for $35 total
  16. pnwhunter69

    Buffer tube, buffer & buffer spring

      1. For Sale
    • $35
    • Molalla
    • Oregon
    PSA 6 position buffer tube, standard buffer and buffer spring. All new in packaging $35
  17. Tgrow503

    Buffer springs rifle /carbine - buffers Geissele JP Springco Radian -gas tube muzzle device .

      1. For Sale
    • $5
    • TUALATIN
    • Oregon
    All are near new used for testing 20-50 rounds on each item. Rifle springs used in a5 tubes . All springs $15 all mil spec parts $5. Radian CH new out of box $60 sold Aero carbine nitride gas tube new $10 sold Aero .750 low pro gas block. $ 20 sold Kak compensator 1/2x26 $15 Midwest...
  18. chipotle

    Springco Orange .308 Extra Power Buffer Spring

      1. For Sale
    • $15
    • Vancouver
    • Washington
    WTS- Springco orange .308 extra power buffer spring. Unfired condition, was installed for about 5 mins and racked twice before I decided it was too much for my AR9. $15 cash FTF in Vancouver. PM with any questions please.
  19. chipotle

    20" HBAR 5.56 1:7 Twist Barrel w/GB & Tube, 15" MLOK Handguard w/Barrel Nut + New Shims & Wrench, A2 flash hider, Springco Orange Buffer Spring

      1. For Sale
    • Vancouver
    • Washington
    For Sale 1.) BCA 20" HBAR profile 5.56 1:7 twist barrel w/rifle length gas tube & lopro gas block ($70) 2) A2 flash hider ($5) 3) BCA 15" MLOK handguard w/barrel nut, bag-o'-shims, and 30mm AR Stoner crowfoot wrench for installation: ($60) 4) Springco Orange .308 Extra Power Buffer Spring...
  20. R

    SOLD Aero Buffer spring kit with 7.7oz buffer

      1. For Sale
      2. For Trade
    • $50
    • Portland
    • Oregon
    Replace that old PCC spring and heavy buffer or grab a spare... Got this in trade here on NWFA. Original owner got it directly from Aero on an EPC-9 lower but said he swapped out for captured buffer spring immediately. I've never used it myself so it's basically new. This is for the spring and...
Sporting Systems
Copeland Custom Gunworks
Tigard Pawn 4 More
Bear Creek Arsenal
Southwest Firearms Forum
Cerberus Training Group
Back Top